557-99-3
氟乙酰
+
142-29-0
环戊烯
75-05-8
乙腈
→
73113-00-5
1-cyclopent-2-en-1-ylethanone
136271-67-5
Cis-5-fluoro-3,5-dimethyl-2-aza-4-oxa-cis-bicyclo[4.3.0]non-2-ene
108-24-7
乙酸酐
16112-10-0
1-乙酰基-1-环戊烯